Improvement in f addle-wheels



waited gum ewe can.

DAVID lDlECHjAV-EN, or New. ORLEANS, LOUISIANA.

Letters Patent No. 107,014, dated September 6, 1870.

niir novnmmw m PADDLE-WHEELS.

i The Schedule referred toin these Letters Patent and making part ofthe same.

To all whom it mayconcern, 1

Be it known tin-11:11, DAV D DE HAVE), of New Orleans, in the parish of Orleans and State-of Louisiana, hareinvented an Improved Paddle-Wheelfin' Steam-Boats; and I do hereby declare the tbllowing .to be a fillland'enfnct description of .the'saine, reference being bad to the accoi-n'p'anying drawing making part of this specification, I

g f i i g aside riew ofa segment of a wheel, v

and

.. FiMn'eZ an-Pnlar'ed riew of the same showin t} 9 7, h

the mannenofi sbiltin'y, the buckets or floats.

Like-letters of reference" designate correponding Dartsinboth figures. h a The object of this invention is to give greaterscope' for shitting the buckets orfloats ,than can be had in the middle-wheels of river steamers as ordinarily constructed, and, at the same, time, maintain an equal degree of-strength.

The shifting of buckets outward orinward along the wlu-el-arms, to lessen the etiective diameter of the wheel, is athing of. great importance, as it hasheen proved-by long experience thanwben the bucket is immersed too deep in the-water, the power required to revolre the wheel is greatly in cxcessot' the effect prmlucedin' propulsion; 'and, as tbedegree of immersion varies constantly, by reason (if the different amount of freighton board, it becomes necessary to shift or more the buckets frequently.

My inrention permits a .greatei" latitude in the repcet, without a correspondingdecrease in strength,

than-can be obtained in anywheel as ordinarily constructed;

- Let A-'A representwheel-arms, connectedby asys-- tem of braces arranged in concentric circles in the usual manner.

'lhe last or outer series, B B, is hinged at sfltoa piece, c, secured to the wheel-arm. H

These braces are provided with tongues 0. 0, which enter grooves in the adjoining wheel-arms, (see fig. 2,) and thus prerent; lateral motion. I The braces b b in the second tier are secured in the usual manner to the wheel-arms, only the outer tier being hinged. V

The'binged braces B B, when turned up against the arms A A, allow the stirrnps a a,- which securethe buckets G G, to he slipped along the, arm to any desired point; beyond tbetier. of braces bb, (see fig.':2';) Now, as the wheel-arm always breaks at the tier of braces next the bucket, in case of accident it w'ill'be,

seen that the hinged tier of braces is interposed,

when the buckets are at the extremities of the arms,-

to secure poses set lbrth. DAVID DE HAVE-NJ \Vitnesses:

HEsRY' CONNETT, Jr.,

A. M. Gosnnrrr.

v of braces 13 B, hinged in the manner substantially as shown, and for the pur- 

